nullity is a new theory/number proposed by this professor away from the conventional number line that means that dividing by zero is now possible.
This maens computer crashes and program errors due to the divide by zero error now become possible, or at least, "more manageable."
Also a number of new mathematical problems can now have a solution which includes the use of this nullity term, meaning that assuming other mathematicians like it and start using it, we're gonna start seeing some progress with certain mathematical problems.